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Commit | Line | Data |
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ee4512ed JH |
1 | #include "cache.h" |
2 | #include "config.h" | |
bce9db6d JH |
3 | #include "trace2/tr2_cfg.h" |
4 | #include "trace2/tr2_sysenv.h" | |
ee4512ed JH |
5 | |
6 | static struct strbuf **tr2_cfg_patterns; | |
7 | static int tr2_cfg_count_patterns; | |
8 | static int tr2_cfg_loaded; | |
9 | ||
10 | /* | |
11 | * Parse a string containing a comma-delimited list of config keys | |
12 | * or wildcard patterns into a list of strbufs. | |
13 | */ | |
14 | static int tr2_cfg_load_patterns(void) | |
15 | { | |
16 | struct strbuf **s; | |
17 | const char *envvar; | |
18 | ||
19 | if (tr2_cfg_loaded) | |
20 | return tr2_cfg_count_patterns; | |
21 | tr2_cfg_loaded = 1; | |
22 | ||
bce9db6d | 23 | envvar = tr2_sysenv_get(TR2_SYSENV_CFG_PARAM); |
ee4512ed JH |
24 | if (!envvar || !*envvar) |
25 | return tr2_cfg_count_patterns; | |
26 | ||
27 | tr2_cfg_patterns = strbuf_split_buf(envvar, strlen(envvar), ',', -1); | |
28 | for (s = tr2_cfg_patterns; *s; s++) { | |
29 | struct strbuf *buf = *s; | |
30 | ||
31 | if (buf->len && buf->buf[buf->len - 1] == ',') | |
32 | strbuf_setlen(buf, buf->len - 1); | |
33 | strbuf_trim_trailing_newline(*s); | |
34 | strbuf_trim(*s); | |
35 | } | |
36 | ||
37 | tr2_cfg_count_patterns = s - tr2_cfg_patterns; | |
38 | return tr2_cfg_count_patterns; | |
39 | } | |
40 | ||
41 | void tr2_cfg_free_patterns(void) | |
42 | { | |
43 | if (tr2_cfg_patterns) | |
44 | strbuf_list_free(tr2_cfg_patterns); | |
45 | tr2_cfg_count_patterns = 0; | |
46 | tr2_cfg_loaded = 0; | |
47 | } | |
48 | ||
49 | struct tr2_cfg_data { | |
50 | const char *file; | |
51 | int line; | |
52 | }; | |
53 | ||
54 | /* | |
55 | * See if the given config key matches any of our patterns of interest. | |
56 | */ | |
57 | static int tr2_cfg_cb(const char *key, const char *value, void *d) | |
58 | { | |
59 | struct strbuf **s; | |
60 | struct tr2_cfg_data *data = (struct tr2_cfg_data *)d; | |
61 | ||
62 | for (s = tr2_cfg_patterns; *s; s++) { | |
63 | struct strbuf *buf = *s; | |
64 | int wm = wildmatch(buf->buf, key, WM_CASEFOLD); | |
65 | if (wm == WM_MATCH) { | |
66 | trace2_def_param_fl(data->file, data->line, key, value); | |
67 | return 0; | |
68 | } | |
69 | } | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | void tr2_cfg_list_config_fl(const char *file, int line) | |
75 | { | |
76 | struct tr2_cfg_data data = { file, line }; | |
77 | ||
78 | if (tr2_cfg_load_patterns() > 0) | |
79 | read_early_config(tr2_cfg_cb, &data); | |
80 | } | |
81 | ||
82 | void tr2_cfg_set_fl(const char *file, int line, const char *key, | |
83 | const char *value) | |
84 | { | |
85 | struct tr2_cfg_data data = { file, line }; | |
86 | ||
87 | if (tr2_cfg_load_patterns() > 0) | |
88 | tr2_cfg_cb(key, value, &data); | |
89 | } |